Liquid composition, shaped article, and shaped article production method

Abstract

A liquid composition contains a cellulosic material constituted by a material containing at least one of cellulose and a cellulose derivative, and an ionic liquid having a functional group with reactivity. It is preferred that the ionic liquid has an imidazolium salt structure. It is also preferred that the functional group with reactivity contains a carbon-carbon double bond.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Japanese Patent Application No. 2014-236297 filed on Nov. 21, 2014. The entire disclosures of Japanese Patent Application No. 2014-236297 is hereby incorporated herein by reference.BACKGROUND[0002]1. Technical Field[0003]The present invention relates to a liquid composition, a shaped article, and a shaped article production method.[0004]2. Related Art[0005]Cellulose is a recyclable resource and is accumulated abundantly on earth, and also has excellent biocompatibility and degradability, and therefore is an environmentally friendly material. Accordingly, cellulose has attracted attention recently, and its effective utilization has been demanded (see, for example, JP-A-7-268724).[0006]However, in the past, cellulose was mostly used in paper products such as printing paper and corrugated cardboard, and other than these, it was merely used in fibers (cellulose fibers) and the like. Therefore, there was a p...

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Benefits of technology

[0028]According to this configuration, even if a pattern in which the liquid composition is applied has a finer shape, the liquid composition can be applied with higher reproducibility. As a result, the dimensional accuracy of a finally obtained shaped article can be made higher. Further, in the related art, in the case where a shaped article constituted by a material containing a cellulosic material is tried to be produced using an inkjet method, a problem that the dimensional accuracy or the like of the shaped article is low occurred more remarkably. However, according to the invention, even in the case where an inkjet method is used, the occurrence of such a problem can be reliably prevented. That is, in the case where the liquid composition is applied using an inkjet method, the effect of the invention is more remarkably exhibited.

Problems solved by technology

Therefore, there was a problem that various advantageous characteristics of cellulose are not fully utilized.

In particular, cellulose has low solubility in various solvents and it is difficult to prepare a high concentration solution.

Therefore, when cellulose was formed into a given shape, it was difficult to prepare a liquid composition having high uniformity, so that it was difficult to produce a shaped article having high dimensional accuracy.

In particular, recently, a three-dimensional shaping method for obtaining a three-dimensionally shaped article using an inkjet method or the like has attracted attention, however, it was extremely difficult to stably eject a composition containing cellulose by an inkjet method or the like.

Further, cellulose has been known to be able to constituting a member having excellent mechanical strength because of its chemical structure, however, it has not yet been applied on a practical level to a member having high strength and high durability which sufficiently exhibits the characteristics of cellulose.

Further, in the related art, in the case where a shaped article constituted by a material containing a cellulosic material is tried to be produced using an inkjet method, a problem that the dimensional accuracy or the like of the shaped article is low occurred more remarkably.

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